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Synthetic resins or natural rubbers -- part of the class 520 series

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
524000000 SYNTHETIC RESINS (CLASS 520, SUBCLASS 1) 7488

Patent applications in class Synthetic resins or natural rubbers -- part of the class 520 series

Patent applications in all subclasses Synthetic resins or natural rubbers -- part of the class 520 series